Top Considerations when Replacing Windows and Doors

Window Fitters

There are loads of reasons for replacing windows and doors on your property. For lots of homeowners, it’s about getting rid of draughts and cold spots caused by old, inefficient windows, for others it’s about improving home security. Some homeowners just want to improve kerb appeal and others want replacement windows and doors that are low-maintenance.

Whatever your reasons for choosing to install new double glazing in your home, here are our top things to consider when replacing windows and doors.

Why are you replacing windows and doors?

If it’s all about getting rid of draughts and cold spots that can make your home uncomfortable, make sure that you choose energy efficient windows and doors with a high Window Energy Rating.

For the security conscious, you’ll want to look for products that are PAS24 tested and Secured by Design (SBD) accredited. SBD is the police-approved security initiative, accredited products have been designed with security in mind to offer complete peace of mind to homeowners.

If you’re looking to transform your home with new windows and doors, you’ll be amazed by the options that are out there. Choose from slimline aluminium frames, uPVC flush sash designs and timber alternative products in a full range of colours and woodgrain finishes to create the perfect look for your home.

As for entrance doors, composite doors are fast becoming the door of choice for homeowners looking for thermal efficiency and great security. uPVC and aluminium residential doors offer great performance and design benefits too.

Do you need planning permission or building control?

You do not normally need Planning Permission to replace your windows and doors, but there are some exceptions. If you live in a listed property, or your local council has an Article 4 Direction, your home will not be covered by Permitted Development Rights, so you will need to apply for permission.

Building Regulations apply to all replacement glazing, to ensure that they are safe and have sufficient levels of performance. They cover all areas including thermal efficiency, ventilation and safety measures such as fire and emergency exits.

By choosing an installer who is registered with a Competent Person Scheme (CPS) you can be sure that they are approved to replace your windows and comply with Building Regulations. They are regularly audited so they can register their own work and you will receive Building Regulation Compliance Certificates.

What about energy efficient window and door replacements?

There’s lots of jargon out there about energy efficiency of windows and doors. Here are some of the terms companies might use and what they mean:

  • A U-Value?

A U-Value is just a measurement of how effective a material is as an insulator on a building. The lower the U-Value is, the better the material is as an insulator. So, if window 1 has a U-Value of 1.1 W/m2K and window 2 has a U-Value of 0.9 W/m2K, window 2 is the better insulator.

  • A Window Energy Rating (WER)?

Window Energy Ratings are a measure of how energy efficient a window is. It uses a mathematical formula so that a window can be directly compared to another under standard conditions. All new and replacement windows must be rated as ‘C’ or higher or have a U-Value of 1.6 W/m2K or lower.

  • Window Energy Rating Labels

Certass’ Thermal Rating Register uses the simple colour coded, A-G rating energy label, similar to the stickers you see on white goods like refrigerators and washing machines. ‘A’ being the most energy efficient and G the least efficient.

How to choose a replacement window and door installer

Local installers are a great choice for replacing windows and doors at your home. They will have done work in your area before and they usually offer a great range of design options too.

Look out for recommendations from family, friends and neighbours, check out their online reviews and look at their social media pages. Lots of installers are using Facebook to show off their latest work, so you can easily see photos of their last project.

What is a Competent Person Scheme?

Installation companies that are part of a Competent Person Scheme (CPS) are able to self-certify that their work is compliant with Building Regulations. This means that when they install your replacement windows and doors, they don’t need to submit a building notice or have an inspection by your local authority.

Under the Certass CPS, installers are assessed and inspected on a regular basis to ensure that their workmanship standards are up-to-scratch. We also carry out on-site audits and check all paperwork, so that you can be sure that our members meet Government standards and offer a great service for homeowners.